NH DHHS - Identifies Positive Test for EEE in an Animal

Finding Leads to Increase in Risk Level

Concord, NH - The New Hampshire Department of Health and Human Services

(DHHS) is today announcing a positive test result for Eastern Equine

Encephalitis (EEE) in a mule in the town of Candia. This finding raises

the risk level for human illness in Candia from “Moderate” to “High.” The

surrounding towns of Auburn, Chester, Hooksett, and Raymond will be

increased from “Low” to “Moderate” risk.

“This is the first animal in New Hampshire to test positive for EEE this

season,” said DHHS Public Health Director Dr. José Montero. “This is

another indicator that there are EEE virus and West Nile Virus infected

mosquitoes in the State. The end of August through mid-October is the time

that people are at the greatest risk for contracting a mosquito-borne

disease. It is so important for everyone in the State, no matter where you

live, to take simple precautions to prevent being bitten by mosquitoes.”

So far this season New Hampshire’s Public Health Lab has tested 2,908

batches of mosquitoes. Of those, 6 tested positive for EEE and none have

tested positive for West Nile Virus (WNV). Additionally, one person was

diagnosed with EEE virus infection in August.

EEE is a serious disease that carries a high mortality rate for those who

contract the serious encephalitis form of the illness. Symptoms may

include high fever, severe headache, and stiff neck. There is no treatment

for the disease, which can lead to seizures and coma. Symptoms usually

occur 4 to 10 days after being bitten. Symptoms of WNV disease often

appear 4 to 10 days after being bitten. If you or someone you know is

experiencing flu-like symptoms, including fever and headache, contact your

local medical provider.

Protect yourself and your family from WNV and EEE with these simple steps:

· Use an effective mosquito repellant when you’re outside

· Wear long sleeves and pants at dawn and dusk when mosquitoes are most


· Remove standing water from around your home so mosquitoes do not have

a place to breed

· Check doors and windows to ensure screens are in place and in good

condition to prevent mosquitoes from entering your home

For more information about EEE and West Nile Virus visit the DHHS website

at http://www.dhhs.nh.gov/dphs/cdcs/arboviral/index.htm and the Centers for

Disease Control and Prevention website at www.cdc.gov . For questions

contact the DHHS Bureau of Infectious Disease Control at 603-271-4496.

Prevention Guidelines for West Nile Virus and

Eastern Equine Encephalitis

NH Department of Health and Human Services, Division of Public Health


1. Eliminate standing water and other mosquito breeding locations.

In warm weather, mosquitoes can breed in any puddle that lasts more than 4


· Remove old tires from your property.

· Dispose of tin cans, plastic containers, ceramic pots, or other

containers. Don’t overlook containers that have become overgrown

by aquatic vegetation.

· Drill holes in the bottom of recycling containers that are left


· Make sure roof gutters are clean and draining properly.

· Clean and chlorinate swimming pools and hot tubs. If not in use,

keep empty and covered and keep covers free of standing water.

· Aerate garden ponds or stock them with fish.

· Turn over wheelbarrows and change water in birdbaths at least

twice weekly.

· Turn over plastic wading pools when not in use.

· Remind or help neighbors to eliminate breeding sites on their


2. Be aware of where mosquitoes live and breed and keep them from entering

your home.

· Mosquitoes lay their eggs in standing water. Weeds, tall grass, and

bushes provide an outdoor home for adult mosquitoes, including

several species commonly associated with West Nile virus and eastern

equine encephalitis.

· Mosquitoes can enter homes through unscreened windows or doors, or

broken screens. Make sure that doors and windows have tight-fitting

screens. Repair or replace all screens in your home that have tears

or holes.

· Resting mosquitoes can often be flushed from indoor resting sites by

using sweeping motions under beds, behind bedside tables etc. and

once in flight, exterminated prior to sleeping at night.

3. Protect yourself from mosquito bites.

· If outside during evening, nighttime, and dawn hours when mosquitoes

are most active and likely to bite, children and adults should wear

protective clothing such as long pants, long-sleeved shirts, and


· Consider the use of an effective insect repellent, such as one

containing DEET. A repellent containing 30% or less DEET

(N,N-diethyl-methyl-meta-toluamide) for children and adults. Use DEET

according to the manufacturer's directions. Children should not apply

DEET to themselves. Repellents that contain Picaridin,

para-menthane-diol or oil of lemon eucalyptus have also been

determined to be effective.

· Vitamin B, ultrasonic devices, incense, and bug zappers have not been

shown to be effective in preventing mosquito bites.

For more information on West Nile Virus or Eastern Equine Encephalitis,

call the NH Department of Health and Human Services toll-free West Nile

Virus Information Line at 1-866–273–NILE (6543), or visit the West Nile

Virus Website at www.dhhs.nh.gov